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Additional
Rock (geology)
English Wikipedia - The Free Encyclopedia
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Rock (geology)
In
geology
,
rock
or
stone
is a naturally occurring solid
aggregate
of one or more
minerals
or
mineraloids
. For example, the common rock
granite
is a combination of the
quartz
,
feldspar
and
biotite
minerals. The Earth's outer solid layer, the
lithosphere
, is made of rock.
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